There are plenty of factors you must take into consideration, though, including job opportunities, the country's culture, and its economy. The cost of basic expenses also varies massively from one region to another.

Depending on where you're moving, small differences, such as the cost of rent or even a coffee, can be a huge culture shock compared to what you're used to paying — and not always in a good way.

Business Insider has compiled a list of every European city where you can live on less than $800 a month — that's less than a third of the monthly cost of living in London ($2,485 / £1,838).

The data was compiled from Numbeo's Cost of Living Index, which looks at the everyday costs in major cities around the globe and is updated every month. Numbeo includes Russia in its definition of Europe.

The index takes into account a multitude of factors including the cost of groceries, eating and drinking out, travel, rent, utilities, and even spread-out and occasional splurges such as clothing and cinema trips — and one country emerged at the clear winner.

While the data represents a well-rounded approximation of how much one person spends in each city over the space of a month, we've highlighted some specific examples — including the cost of a cup of coffee, a beer, rent, and travel — to give a better idea of how costs fluctuate between each location.

Scroll on to discover every European city where you can live comfortably on less than $800 a month, ranked by the average cost of living from most expensive to cheapest.